Look and Google
The earliest evidence of pulleys dates back to Ancient Egypt in the Twelfth Dynasty (1991–1802 BC) and Mesopotamia in the early 2nd millennium BC. In Roman Egypt, Hero of Alexandria (c. 10–70 AD) identified the pulley as one of six simple machines used to lift weights.
Actually, they hide how much knowledge in astronomy, construction and logistics is show cased in the Pyramids, by bullshitt peaking in extraterrestrial technology...
The Bible is true. Jesus lived and Muhammad was a good man.
Believe it or not.
#jedi
Train body and mind.